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Proceedings Paper

The Concept Of Effective Exposure Time For Three Phase Diagnostic Radiologic Equipment
Author(s): Richard T. Mooney; Jose Burgos; Walter A. Matis Jr.
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Paper Abstract

Performance evaluations of three phase diagnostic radiologic equipment indicate the need for a reassessment of the concept of exposure time. Measurements of exposure time as defined by the equipment manufacturer (kV pulse width at 75% of peak value) demonstrates a lack of proportionality between exposure time and radiation intensity. In this paper, a method of determining an effective exposure time is presented. This effective time is defined as teff = tind + ▵t, where tind is the time indicated at the control and At is the correction required to achieve proportionality. Measurements show a wide variation in the value of At among different manufacturers and for different operating conditions, ranging from 0 to 6 ms.

Paper Details

Date Published: 23 December 1976
PDF: 6 pages
Proc. SPIE 0096, Application of Optical Instrumentation in Medicine V, (23 December 1976); doi: 10.1117/12.965391
Show Author Affiliations
Richard T. Mooney, New York City Health and Hospitals Corporation (United States)
Jose Burgos, New York City Health and Hospitals Corporation (United States)
Walter A. Matis Jr., New York City Health and Hospitals Corporation (United States)


Published in SPIE Proceedings Vol. 0096:
Application of Optical Instrumentation in Medicine V
Robert K. Cacak; Paul L. Carson; Gregory Dubuque; Joel E. Gray; William R. Hendee; Raymond P. Rossi; Arthur Haus, Editor(s)

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